Real store listing · independent assessment pending.
4.0 ★6 ratings
—Downloads
4+Age rating
18 MBApp size
$6.99In-app purchases
About this app
Deck Officer's Tools:
- Compass Error Calculation - Celestial Navigation - E.T.A Calculation - Port UN LOCODE - Units Converter - True Wind Calculation
The app runs offline and all calculations are done within the app using precise and sophisticated algorithms.
Compass Error Calculation
64 Celestial Objects. Precise bearing and altitude. Automatic calculation of magnetic variation. Complete calculation according to all requirements. Suitable for all types of ship logs. Hiding celestial objects below the horizon is available.
Celestial Navigation
Three position lines for calculating the ship's position. A function is available for mapping the lines of position and the calculated position of the vessel. The sunrise and sunset function is available as well as Twilight Nautical and Twilight Civil.
E.T.A Calculation…
Preview
Real screenshots from the store listing.
Independent evidence report
Evidence and review signals
This is where the page changes from an app-store listing into an evidence report: findings, important reviews, pricing and a dated history.
What we measured
Each line is a measurement published as a measurement, never a verdict.
Each line is a measurement, published as a measurement. Where we have not looked, the line says so rather than reading as a zero.
Developer replies to reviews
Not assessed
Fewer than 50 reviews scanned — too few to state a rate
Price in the store description
States no price and billing period
Cancelling, in the store description
Does not say how to cancel
Themes reported by reviewers
Not assessed
This app's reviews have not been assessed yet
Five-star share of ratings
Under 65% five-star
Arithmetic on the stores' own published rating counts. It says nothing about why the ratings fall where they do.
In the package we scanned
No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence about the app, not a finding about it.
Graded bands · predicate set 1.4 · how these are measured
What the analysis found
App-specific findings, grouped by what each one rests on. How they are graded lives on its own page.
No review themes cleared the reporting threshold.
Assessment & version history
App changes and Appworthy events in one timeline.
What this app sells
Useful store-disclosed pricing, kept below the app listing.
Business model$6.99
Prices and terms as disclosed by the store listing.